by DuctPro™ | Jul 24, 2026
A contractor who blocks every register except the one nearest the vacuum connection is not maximizing suction. In most systems, that contractor is starving the fan curve, spiking static pressure past the point where the motor delivers useful airflow, and pulling...
by DuctPro™ | Jul 16, 2026
Register blocking looks simple from the outside. Tape or a cap goes over an opening, and airflow supposedly “goes where you want it to.” Contractors who treat it that casually usually end up with uneven soil removal, unexpected leakage paths, or a system...
by DuctPro™ | Jul 7, 2026
Containment failure is the single most common reason a duct cleaning job generates an immediate callback. Debris that escapes the work zone during high-velocity mechanical agitation does not disappear; it resettles in return air paths, redistributes into occupied...
by DuctPro™ | Jul 6, 2026
Pressure means nothing without volume. A compressor rated at 150 PSI is useless for duct agitation if it cannot sustain airflow under load. This is the single most misunderstood spec on a contractor’s equipment sheet, and it is why crews running undersized...
by DuctPro™ | Jul 6, 2026
A duct system with a 15% leakage rate is not 15% less efficient. It is functionally broken for extraction purposes. A meticulous duct leakage inspection exists because a leaky trunk line does not behave like a slightly weaker version of a sealed one. It behaves like a...
